The security hardware also helps build secure VPN access for remote monitoring, which leads to real-time supervision of operations and optimized production efficiency over the factory floor. SSL VPN encrypts data before transmission while decrypting it at the authorized end to prevent eavesdropping and tampering. Intel® AES New Instructions (Intel® AES NI) speeds up data encryption and decryption with enhanced efficiency. Besides secure networking, ISA 1120A supports one LAN Bypass port for fail-safe access. Abnormal equipment operating can be remotely detected and fixed in time, thus extending uptime.

The firewall functionality can also be added in the security hardware platform. For instance, rigid whitelists can be created to authorize access to specific programs and IP addresses. Combined with VPN, remote access to supervision of operations and data can be implemented securely, fending off performance deficiency caused by cyber attacks.

To ensure operating reliability in demanding industrial applications, the security hardware has wide-temperature durability from -40 to 70 degree Celsius. Fanless design eliminates overheating from dust ingress while wide voltage tolerance from 9 to 30V DC avoids system damages from unstable power supplies.